The ability of the brain to use its major fuel, the sugar glucose, is reduced in Alzheimer's disease. A nutritional supplement has been developed to improve the function of the Alzheimer brain by increasing its ability to use sugar effectively. The ingredients of the supplement are natural products, and are found in the normal American diet. Results have been encouraging in open trials where the patients knew they were taking the active medicine. Patients are now being invited to participate in a placebo-controlled trial lasting 3 months, followed by a 3-month open label trial where all patients will receive the active preparation.